A Novel fry1 Allele Reveals the Existence of a Mutant Phenotype Unrelated to 5′->3′ Exoribonuclease (XRN) Activities in Arabidopsis thaliana Roots

@article{Hirsch2011ANF,
  title={A Novel fry1 Allele Reveals the Existence of a Mutant Phenotype Unrelated to 5′->3′ Exoribonuclease (XRN) Activities in Arabidopsis thaliana Roots},
  author={Judith Hirsch and Julie Misson and Peter A. Crisp and Pascale David and Vincent Bayle and Gonzalo M Estavillo and H{\'e}l{\`e}ne Javot and Serge Chiarenza and Allison C. Mallory and Alexis Maizel and Marie Declerck and Barry J. Pogson and Herv{\'e} Vaucheret and Mart{\'i}n D. Crespi and Thierry Desnos and Marie-Christine Thibaud and Laurent Nussaume and Elena Mar{\'i}n},
  journal={PLoS ONE},
  year={2011},
  volume={6}
}
Background Mutations in the FRY1/SAL1 Arabidopsis locus are highly pleiotropic, affecting drought tolerance, leaf shape and root growth. FRY1 encodes a nucleotide phosphatase that in vitro has inositol polyphosphate 1-phosphatase and 3′,(2′),5′-bisphosphate nucleotide phosphatase activities. It is not clear which activity mediates each of the diverse biological functions of FRY1 in planta. Principal Findings A fry1 mutant was identified in a genetic screen for Arabidopsis mutants deregulated in… 
Insertion of a Specific Fungal 3′-phosphoadenosine-5′-phosphatase Motif into a Plant Homologue Improves Halotolerance and Drought Tolerance of Plants
TLDR
Transgenic Arabidopsis plants overexpressing this modified SAL1 (mSAL1) showed improved halotolerance and drought tolerance, and demonstrates that adaptations of extremotolerant fungi should be considered as a valuable resource for improving stress-tolerance in plant breeding in the future.
Surveillance of 3′ Noncoding Transcripts Requires FIERY1 and XRN3 in Arabidopsis
TLDR
Findings suggest that XRN3, in combination with FRY1, is required to prevent the accumulation of 3′ extensions that arise from thousands of mRNA and miRNA precursor transcripts.
The Arabidopsis SAL1-PAP Pathway: A Case Study for Integrating Chloroplast Retrograde, Light and Hormonal Signaling in Modulating Plant Growth and Development?
TLDR
All the sal1 phenotypes published in the past two decades are collated, and the SAL1-PAP pathway is proposed as a case study for integrating chloroplast retrograde signaling, light signaling and hormonal signaling in plant growth and morphogenesis.
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TLDR
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TLDR
This review summarizes and discusses multiple roles of AtXRN exoribonucleases and their relationship with noncoding RNA pathways including RNA silencing pathways.
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TLDR
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A Nucleotide Metabolite Controls Stress-Responsive Gene Expression and Plant Development
TLDR
It was found that PAP level was tightly controlled in plants and did not accumulate to any significant level either under normal conditions or under NaCl, LiCl, cold, or ABA treatments, and the FRY1 nucleotidase that catabolizes PAP may not be an in vivo salt toxicity target in Arabidopsis.
A chemical genetic strategy identify the PHOSTIN, a synthetic molecule that triggers phosphate starvation responses in Arabidopsis thaliana
TLDR
The range of local and systemic responses to Pi‐ starvation elicited, and their dependence on the PHR1/PHL1 function suggests that PSN11 affects an important and early step of Pi‐starvation signalling, suggesting the existence of unknown pathway(s).
Effects of fou8/fry1 Mutation on Sulfur Metabolism: Is Decreased Internal Sulfate the Trigger of Sulfate Starvation Response?
TLDR
The analysis of fou8 revealed that sulfate starvation response is triggered by a decrease in internal sulfate as opposed to external sulfate availability and that the presence of desulfo-glucosinolates does not induce the glucosinolate synthesis network.
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